Release v8.4.0 (2026-06-24)

[radenkovic]

Release v8.4.0 (2026-06-24)

Jira: TW-5703

Canary release — publish with npm publish --tag canary after CI passes.

Changelog

[8.4.0] - 2026-06-24

Added

• Add nylas.transactionalSend.send() for domain-based transactional email send (POST /v3/domains/{domainName}/messages/send) (#747)
• Add optional calendarId and eventId fields to the Notetaker model (#748)

Fixed

• Add message.created.truncated and message.updated.truncated to WebhookTriggers (#748)
• Add missing webhook trigger types (message.deleted, message.created.cleaned, grant.imap_sync_completed, Notetaker triggers, Agent Account and transactional deliverability triggers, and legacy tracking triggers) (#750)

Changed

• Bump dependencies to reasonable latest versions (#749)

References

• Transactional send API — commit dfecf24 / PR feat(transactionalSend): add domain-based transactional email send API (TT-4384) #747 / TT-4384
• Truncated webhook triggers + Notetaker fields — commit 3503b29 / PR fix(models): add truncated webhook triggers and Notetaker calendar/event IDs #748 / TW-5661 / closes Add truncated events to WebhookTriggers enum #723, Nylas Documentation/SDK does not match real output #682
• Dependency bump — commit b7d4a30 / PR chore(deps): bump all dependencies to reasonable latest (TW-5663) #749 / TW-5663
• Missing webhook triggers — commit da8db19 / PR fix(models): add missing WebhookTriggers enum values #750 / TW-5668 / closes Add missing message.deleted Webhook trigger #746 (thanks @Kile)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.75%. Comparing base (da8db19) to head (e69eb77).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #751   +/-   ##
=======================================
  Coverage   98.75%   98.75%           
=======================================
  Files          43       43           
  Lines        1045     1045           
  Branches       92       92           
=======================================
  Hits         1032     1032           
  Misses         12       12           
  Partials        1        1           

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